diff --git a/hack/submodules/archivematica-storage-service b/hack/submodules/archivematica-storage-service
index 1c274365b1..7de1df9828 160000
--- a/hack/submodules/archivematica-storage-service
+++ b/hack/submodules/archivematica-storage-service
@@ -1 +1 @@
-Subproject commit 1c274365b13a09a0ebcb4d23c97b8fae4cc9d1dc
+Subproject commit 7de1df9828027df06d8b102a37c63917d9050c1c
diff --git a/src/MCPClient/lib/assets/catalog/catalog.xml b/src/MCPClient/lib/assets/catalog/catalog.xml
index c8be56542d..51460c5de1 100644
--- a/src/MCPClient/lib/assets/catalog/catalog.xml
+++ b/src/MCPClient/lib/assets/catalog/catalog.xml
@@ -5,21 +5,29 @@
+ uri="../mets/xlink.xsd" />
+ uri="../mets/mets.xsd" />
+ uri="../premis/premis.xsd" />
+
+
+
+
-
+
\ No newline at end of file
diff --git a/src/MCPClient/lib/assets/mods/mods.xsd b/src/MCPClient/lib/assets/mods/mods.xsd
new file mode 100644
index 0000000000..74d98bb90b
--- /dev/null
+++ b/src/MCPClient/lib/assets/mods/mods.xsd
@@ -0,0 +1,1771 @@
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diff --git a/src/MCPClient/lib/assets/mods/xml.xsd b/src/MCPClient/lib/assets/mods/xml.xsd
new file mode 100644
index 0000000000..bb367ccf5d
--- /dev/null
+++ b/src/MCPClient/lib/assets/mods/xml.xsd
@@ -0,0 +1,146 @@
+
+
+
+
+
+ See http://www.w3.org/XML/1998/namespace.html and
+ http://www.w3.org/TR/REC-xml for information about this namespace.
+
+ This schema document describes the XML namespace, in a form
+ suitable for import by other schema documents.
+
+ Note that local names in this namespace are intended to be defined
+ only by the World Wide Web Consortium or its subgroups. The
+ following names are currently defined in this namespace and should
+ not be used with conflicting semantics by any Working Group,
+ specification, or document instance:
+
+ base (as an attribute name): denotes an attribute whose value
+ provides a URI to be used as the base for interpreting any
+ relative URIs in the scope of the element on which it
+ appears; its value is inherited. This name is reserved
+ by virtue of its definition in the XML Base specification.
+
+ id (as an attribute name): denotes an attribute whose value
+ should be interpreted as if declared to be of type ID.
+ The xml:id specification is not yet a W3C Recommendation,
+ but this attribute is included here to facilitate experimentation
+ with the mechanisms it proposes. Note that it is _not_ included
+ in the specialAttrs attribute group.
+
+ lang (as an attribute name): denotes an attribute whose value
+ is a language code for the natural language of the content of
+ any element; its value is inherited. This name is reserved
+ by virtue of its definition in the XML specification.
+
+ space (as an attribute name): denotes an attribute whose
+ value is a keyword indicating what whitespace processing
+ discipline is intended for the content of the element; its
+ value is inherited. This name is reserved by virtue of its
+ definition in the XML specification.
+
+ Father (in any context at all): denotes Jon Bosak, the chair of
+ the original XML Working Group. This name is reserved by
+ the following decision of the W3C XML Plenary and
+ XML Coordination groups:
+
+ In appreciation for his vision, leadership and dedication
+ the W3C XML Plenary on this 10th day of February, 2000
+ reserves for Jon Bosak in perpetuity the XML name
+ xml:Father
+
+
+
+
+ This schema defines attributes and an attribute group
+ suitable for use by
+ schemas wishing to allow xml:base, xml:lang, xml:space or xml:id
+ attributes on elements they define.
+
+ To enable this, such a schema must import this schema
+ for the XML namespace, e.g. as follows:
+ <schema . . .>
+ . . .
+ <import namespace="http://www.w3.org/XML/1998/namespace"
+ schemaLocation="http://www.w3.org/2001/xml.xsd"/>
+
+ Subsequently, qualified reference to any of the attributes
+ or the group defined below will have the desired effect, e.g.
+
+ <type . . .>
+ . . .
+ <attributeGroup ref="xml:specialAttrs"/>
+
+ will define a type which will schema-validate an instance
+ element with any of those attributes
+
+
+
+ In keeping with the XML Schema WG's standard versioning
+ policy, this schema document will persist at
+ http://www.w3.org/2005/08/xml.xsd.
+ At the date of issue it can also be found at
+ http://www.w3.org/2001/xml.xsd.
+ The schema document at that URI may however change in the future,
+ in order to remain compatible with the latest version of XML Schema
+ itself, or with the XML namespace itself. In other words, if the XML
+ Schema or XML namespaces change, the version of this document at
+ http://www.w3.org/2001/xml.xsd will change
+ accordingly; the version at
+ http://www.w3.org/2005/08/xml.xsd will not change.
+
+
+
+
+
+ Attempting to install the relevant ISO 2- and 3-letter
+ codes as the enumerated possible values is probably never
+ going to be a realistic possibility. See
+ RFC 3066 at http://www.ietf.org/rfc/rfc3066.txt and the IANA registry
+ at http://www.iana.org/assignments/lang-tag-apps.htm for
+ further information.
+
+ The union allows for the 'un-declaration' of xml:lang with
+ the empty string.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ See http://www.w3.org/TR/xmlbase/ for
+ information about this attribute.
+
+
+
+
+
+ See http://www.w3.org/TR/xml-id/ for
+ information about this attribute.
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file